Jepson Flora Project: Jepson Interchange    

 
link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

ASTERACEAE

SUNFLOWER FAMILY

David J. Keil, Family Editor and author, except as specified

Annual to tree
Leaves basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1–many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1–many per head
Flowers bisexual, unisexual, or sterile, ± small, of several types; calyx 0 or modified into pappus of bristles, scales, or awns, which is generally persistent in fruit; corolla radial or bilateral (rarely 0), lobes generally (0)4–5; stamens 4–5, anthers generally fused into cylinder around style, often appendaged at tips, bases, or both, filaments generally free, generally attached to corolla near throat; pistil 1, ovary inferior, 1-chambered, 1-seeded, style 1, branches 2, generally hair-tufted at tip, stigmas 2, generally on inside of style branches
Fruit: achene, cylindric to ovoid, generally deciduous with pappus attached
Genera in family: ± 1300 genera, 21,000 species (largest family of dicots): worldwide. Largest family in CA. Also see tribal key to CA genera: Strother 1997 Madroño 44(1):1–28. See glossary p. 25 for illustrations of general family characteristics.

ERICAMERIA

GOLDENBUSH

Gregory K. Brown and David J. Keil

Shrubs < 50 dm, resinous, generally gland-dotted
Leaves < 10 cm, thread-like to wedge-shaped, entire
Inflorescence various; heads radiate or discoid; involucre 3–14 mm, obconic to hemispheric; phyllaries in 2–6 series, ± lanceolate to ovate, generally resinous, tips erect to recurved, obtuse to acuminate or tailed, midrib often thickened with a resin gland
Ray flowers 0–30; corollas 2–12 mm, generally yellow
Disk flowers 4–70+; corollas 3–11 mm, yellow
Fruit 2–8 mm, ribbed; pappus white to brown
Species in genus: ± 27 species: w North America
Reference: [Nesom 1990 Phytologia 68:144–155]
Generally flowers summer/autumn. Some species hybridize with Chrysothamnus nauseosus.

Native

E. linearifolia (DC.) Urbatsch & Wussow

INTERIOR GOLDENBUSH

Plant 4–15 dm, glabrous to ± puberulent
Leaf 10–55 mm, linear, acute; base narrowed
Inflorescence: head radiate, 1, on ± leafless peduncles; involucre 8–14 mm, 10–18 mm diam, hemispheric; phyllaries in 2–3 series, linear to lanceolate, acuminate, stalked-glandular, center green, margin cut-ciliate, scabrous
Ray flowers 13–18; corollas 9–20 mm
Disk flowers many; corollas 6–10 mm
Fruit 4–5 mm, compressed, 6–8-veined, densely silky-hairy; pappus 5.5–7 mm, white
Chromosomes: 2n=18
Ecology: Dry slopes, valleys
Elevation: < 2000 m.
Bioregional distribution: s Sierra Nevada Foothills, Sacramento Valley (Sutter Buttes), s San Joaquin Valley, e Central Western California, Western Transverse Ranges, Mojave Desert, w Sonoran Desert
Distribution outside California: Nevada, sw Utah, w Arizona
Flowering time: Mar–May
Synonyms: Haplopappus l. DC
Hybridizes with E. cooperi.
Horticultural information: DRN, DRY, SUN: 2, 3, 7, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24; DFCLT.

previous taxon | next taxon
bioregional map for ERICAMERIA%20linearifolia being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Ericameria linearifolia
Retrieve dichotomous key for Ericameria
Retrieve multiple-entry key (MEKA) for Ericameria
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
Glossary


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California